| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 170 |
15.2%
|
| 2 | 1 | 279 |
24.9%
|
| 3 | 2 | 103 |
9.2%
|
| 4 | 3 | 12 |
1.1%
|
| Missing value | 555 |
49.6%
|